Finding the Fourth Proportional to 2,260.76, 3,119.71 and 1,265.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,260.76 : 3,119.71 = 1,265.87 : x
2. Step 2: Convert to fraction form
   2,260.76/3,119.71 = 1,265.87/x
3. Step 3: Cross multiply
   2,260.76x = 3,119.71 × 1,265.87
4. Step 4: Simplify right side
   2,260.76x = 3,949,147.30
5. Step 5: Solve for x
   x = 3,949,147.30/2,260.76
6. Step 6: Final answer
   x = 1,746.82